'76 Pontiac Catalina Carburetor Question
Hello, I own a '76 Pontiac Catalina, V8 400 CID 2bbl Automatic car. I'm needing to replace my carburetor, that has already been rebuilt several times. My question is this. I looked online and several web stores show that I can get a HOLLEY-AVENGER 4bbl carb for my car. If I buy the 4bbl will it bolt on the same way and will my air breather fit on top. Another words will I have to change something else? Also what is the advantages of going from a 2bbl to a 4bbl. Most people I talk to say the 4bbl is a better buy.